Trust me, it's not a 5, it's more like a 3 in relation to other boards. And it's 1cm longer than your specified lengths, you won't notice the difference.
What do you want to know about the other boards? They'll all do the trick, the only real difference is Bataleon still has camber so will be an all round more versatile board away from jibs, but also less forgiving.
The Bataleon would be my choice out of those because I like a cambered board even on jibs, but for a rockered profile I'd get the artifact.
The Salomon Solomander is stiffer than the Rossignol district.